An apparatus for collecting razor clams and cleaning them in tidal flats

Abstract

The present invention discloses a mudflat razor clam collecting and cleaning device, comprising a razor clam collecting device and a propulsion and cleaning device. The razor clam collecting device includes: razor clam digging forks, a hollow conveyor belt, and a razor clam basket. The propulsion and cleaning device includes two propulsion propellers and a fluid pipeline. The propulsion and cleaning device can propel the mudflat razor clam collecting and cleaning device on the shallow mudflat to dig razor clams. The fluid pipeline is sealed to the back of a flushing area at the front end of the hollow conveyor belt. The propulsion propeller pushes seawater in the fluid pipeline backward, propelling the mudflat razor clam collecting and cleaning device forward. The seawater is accelerated into the fluid pipeline through the flushing area, and the flushing area is used to wash away the mud and sand attached to the razor clams. The mudflat razor clam collecting and cleaning device can not only self-propelled in the shallow mudflat to collect razor clams therein, but also can use the fluid pipeline to generate the seawater flow rate generated by propulsion to wash the razor clams, thereby optimizing the structure of the cleaning mechanism and improving the working efficiency of the mudflat razor clam collecting and cleaning device.

Description

Technical Field

[0001] The present application relates to the field of marine product aquaculture technology, and in particular to a mudflat razor clam collection and cleaning device. Background Art

[0002] As a shellfish with high economic value, razor clams play an important role in mudflat aquaculture. However, the collection of razor clams on mudflats currently faces many challenges.

[0003] Traditional razor clam collection relies primarily on manual labor. Clam collectors must spend long periods bent over, digging for clams individually on the mudflats. This method is not only extremely labor-intensive but also extremely inefficient. A skilled worker can only harvest a limited number of clams per day, making it difficult to meet the harvesting needs of large-scale aquaculture. This severely restricts the development and economic benefits of the razor clam farming industry.

[0004] Some existing razor clam harvesting devices have alleviated the difficulties of manual harvesting to some extent, but they still have significant drawbacks. These devices are relatively simple in structure and most lack self-propelled functionality, requiring workers to laboriously push them across the mudflats. The soft geology of the mudflats makes this process extremely difficult, increasing the labor burden on workers and significantly reducing their ease of operation, limiting their practical application.

[0005] A more prominent problem is that existing razor clam collection equipment is primarily suitable for use in waterless mudflats. However, in actual razor clam farming scenarios, there are numerous shallow mudflats, such as reclaimed sea ponds, where the water level is typically around 1.2 meters. Existing razor clam collection equipment cannot function properly in such shallow mudflat environments, making it difficult to harvest the razor clams. Shallow mudflats are rich in razor clam resources, but the lack of effective collection equipment results in a waste of resources and hinders aquaculture practitioners from fully exploiting and utilizing these mudflat resources to increase their profits.

[0006] Furthermore, existing clam harvesting devices inevitably deposit large amounts of sediment onto the clams during collection. Subsequent processing requires manual rinsing, which not only consumes significant manpower and time, but also makes it difficult to ensure consistent rinsing results. This cumbersome rinsing process further reduces overall clam harvesting efficiency and increases the complexity and labor intensity of manual operations, creating another bottleneck hindering the efficient collection and processing of clams.

[0007] In summary, the development of a razor clam collection device that is efficient, convenient, adaptable to shallow mudflat environments, and can reduce the adhesion of razor clam mud or has an automatic cleaning function is of great practical significance for improving the overall benefits of the razor clam farming industry. Summary of the Invention

[0008] In view of the above problems, the present application provides a mudflat razor clam collecting and cleaning device to solve the technical problems that the existing razor clam collecting device can only be used on waterless mudflats, cannot move on its own and requires manual washing.

[0009] To achieve the above-mentioned purpose, the present application provides a mudflat razor clam collecting and cleaning device for collecting and cleaning razor clams on shallow mudflats. The mudflat razor clam collecting and cleaning device comprises:

[0010] Two slides are arranged parallel to each other on both sides of the bottom of the mudflat clam collecting and cleaning device, and are used for sliding on the mudflat;

[0011] The razor clam collection device includes: razor clam digging forks, a hollow conveyor belt, and a razor clam basket; the razor clam digging forks are arranged at the front end of the hollow conveyor belt, and are used to be inserted obliquely downward into the mudflat to collect razor clams; the hollow conveyor belt is arranged obliquely with the front low and the tail high, and a washing area is provided at the front end, and the washing area is evenly provided with multiple hollow grooves; the razor clam basket is arranged at the tail end of the hollow conveyor belt, and the razor clams are conveyed to the razor clam basket by the hollow conveyor belt;

[0012] A propulsion and clam washing device, comprising: two propulsion propellers and a fluid conduit, the fluid conduit being disposed at the bottom of the mudflat clam collecting and washing device and located between the two slides, the fluid conduit being formed by splicing a top plate, a bottom plate, and two side plates, the front end of the fluid conduit extending to the front end of the hollow conveyor belt and being sealed to the back of the washing area;

[0013] The two propulsion propellers are arranged side by side horizontally at the tail end of the fluid pipeline, and are used to accelerate seawater into the fluid pipeline through the flushing area and push it backward to propel the mudflat clam collecting and cleaning device and flush the mud and sand attached to the clams in the flushing area.

[0014] Furthermore, the two side plates of the fluid conduit are arranged opposite to each other along the width direction of the mudflat clam collecting and cleaning device, the side plates are right-angled trapezoidal plates, and the top plate is spliced with the top edge and the oblique edge of the right-angled trapezoidal plate, so that the front end opening of the fluid conduit is smaller than the rear end opening;

[0015] The front parts of the two side panels are respectively provided with an inlet and a corresponding second valve, and the front end opening of the fluid pipeline is provided with a corresponding first valve; when the mudflat clam picking and cleaning device is working in a non-clam collecting straight-moving condition, the first valve and the second valve are both fully opened; when the mudflat clam picking and cleaning device is working in a clam collecting straight-moving condition, the first valve is opened and the second valve is closed; when the mudflat clam picking and cleaning device is working in a clam collecting turning condition, the first valve is opened, the second valve on the same side of the turning direction is opened, and the second valve on the opposite side of the turning direction is closed, and the rotational speed of the propulsion propeller on the opposite side of the turning direction is greater than the rotational speed of the other propulsion propeller.

[0016] Furthermore, a hinged rod is provided on the back side of the middle and rear part of the hollow conveyor belt, a connecting piece is provided on the top of the fluid pipeline, an arc-shaped chute is provided on the connecting piece, and the hinged rod is connected to the arc-shaped chute, so that the inclination angle of the hollow conveyor belt can be adjusted to adjust the depth of the razor clam digging fork teeth inserted into the mudflat;

[0017] The fluid pipeline is extended in a direction from back to front by a fixed section, a flexible connecting section and a swinging front section, and the flexible connecting section is located in front of the connecting piece; the front end of the swinging front section is fixedly connected to the flushing area, and swings in the vertical direction correspondingly with the change of the inclination angle of the hollow conveyor belt.

[0018] Furthermore, the skateboard is arranged at the bottom of the bracket, and the outer sides of the two brackets are respectively provided with turning assist components, and the turning assist components include: a lifting rod and a resistance-increasing plate, the top of the resistance-increasing plate is fixedly connected to the lifting rod, and the bottom of the resistance-increasing plate is provided with forks. The turning assist component is used for driving the resistance-increasing plate to move downward and insert into the mudflat by the lifting rod on the inner side of the turn when the turning radius is less than a preset turning radius, so as to increase the sliding resistance of the mudflat clam harvesting and cleaning device on the inner side of the turn.

[0019] Furthermore, the clam basket is a hollow basket, and a spray pipe is provided on the top of the clam basket. The spray pipe is connected to a water pump, and the water pump draws seawater to rinse the clams in the clam basket.

[0020] Furthermore, it also includes a lithium battery, which is arranged in the upper middle part of the mudflat clam collecting and cleaning device and is used to power the mudflat clam collecting and cleaning device.

[0021] Furthermore, both ends of the slide plate are bent upward.

[0022] Furthermore, it also includes a controller, which is arranged on the top of the installation rod on the top of the mudflat clam collecting and cleaning device, and a safety guardrail is arranged at the rear of the controller.

[0023] Furthermore, the hollow conveyor belt is provided with a plurality of convex strips at intervals along the length direction, and short guard plates are provided on both sides of the hollow conveyor belt along the width direction.

[0024] Furthermore, a buckle is provided on the edge of the clam basket, and a detachable connection with the mudflat clam collecting and cleaning device is achieved through the buckle.

[0025] Different from the existing technology, the above-mentioned technical solution of the mudflat clam collecting and cleaning device includes two slides, a clam collecting device and a propulsion and clam washing device, wherein the clam collecting device includes: clam digging forks, a hollow conveyor belt and a clam basket, and the propulsion and clam washing device includes two propulsion propellers and a fluid pipeline; the propulsion and clam washing device can push the mudflat clam collecting and cleaning device to move on the shallow mudflat, so as to dig out razor clams; and the fluid pipeline is sealed with the back of the washing area at the front end of the hollow conveyor belt, and the propulsion propeller pushes the seawater in the fluid pipeline backward, thereby pushing the mudflat clam collecting and cleaning device forward, and the seawater is accelerated into the fluid pipeline through the washing area, thereby washing away the mud and sand attached to the razor clams in the washing area. The mudflat razor clam collecting and cleaning device can not only move on its own in shallow mudflats to collect razor clams therein, but also can flush the razor clams through the seawater flow rate generated during propulsion through a fluid pipeline, thereby greatly optimizing the structure of the cleaning mechanism and improving the working efficiency of the mudflat razor clam collecting and cleaning device.

[0026] The above-mentioned records related to the content of the invention are only an overview of the technical solution of this application. In order to enable ordinary technicians in this field to understand the technical solution of this application more clearly, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purposes and other purposes, features and advantages of this application easier to understand, the following is an explanation in combination with the specific implementation methods and drawings of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings are only used to illustrate the principles, implementation methods, applications, features and effects of the specific embodiments of the present invention and other related contents, and are not to be considered as limiting the present application.

[0028] In the drawings of the specification:

[0029] Figure 1 This is a structural diagram of a mudflat razor clam harvesting and cleaning device according to a specific embodiment;

[0030] Figure 2 This is a front view of the mudflat razor clam harvesting and cleaning device described in a specific embodiment;

[0031] Figure 3 This is a schematic diagram of the mudflat clam harvesting and cleaning device according to a specific embodiment, with the fluid pipeline hidden;

[0032] Figure 4 This is a structural diagram of the fluid pipeline and the hollow conveyor belt described in the specific embodiment;

[0033] Figure 5 for Figure 2 A partial enlarged view of part A.

[0034] The reference numerals in the above drawings are described as follows:

[0035] 1. Propeller propeller; 2. Slide plate; 3. Turning assist assembly; 4. Hollow conveyor belt; 5. Fluid pipeline; 6. Controller; 7. Clam basket; 8. Safety guardrail; 9. Sprinkler pipe;

[0036] 11. Protective cover; 21. Bracket;

[0037] 31. Lifting rod; 32. Resistance increasing plate; 33. Connecting rod;

[0038] 40. Rinse area; 44. Hollow hole; 45. Raised strip; 41. Clam picking fork tines; 42. Hinge rod 2; 43. Hinge rod 1; 431. Arc-shaped chute; 50. Side panel; 51. Top panel; 52. Front opening; 53. Second valve; 54. First valve; 501. Fixed section; 502. Flexible connecting section; 503. Swinging front section; DETAILED DESCRIPTION

[0039] In order to explain in detail the possible application scenarios, technical principles, specific solutions that can be implemented, and the purpose and effects of this application, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of this application and are therefore only examples and are not intended to limit the scope of protection of this application.

[0040] References to "embodiments" herein mean that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the word "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the various technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable technical solution.

[0041] Unless otherwise defined, the technical terms used herein have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms herein is only for describing specific embodiments and is not intended to limit this application.

[0042] In the description of this application, the term "and / or" is used to describe a logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and both A and B exist. In addition, the character " / " in this document generally indicates that the objects before and after are in a logical "or" relationship.

[0043] In this application, terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, priority or sequence relationship between these entities or operations.

[0044] Without further limitations, in this application, the words "include", "comprise", "have" or other similar open-ended expressions used in sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product that includes the elements, so that the process, method or product that includes a series of elements may include not only those defined elements, but also other elements that are not explicitly listed, or also include elements inherent to such process, method or product.

[0045] Consistent with the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceed" are understood to exclude the number itself; expressions such as "above," "below," and "within" are understood to include the number itself. Furthermore, in the description of the embodiments of this application, "multiple" means two or more (including two), and similar expressions related to "multiple," such as "multiple groups" and "multiple times," are also understood in this manner, unless otherwise specifically defined.

[0046] In the description of the embodiments of the present application, the space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be understood as a limitation on the embodiments of the present application.

[0047] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms "installed", "connected", "connected", "fixed", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art of the present application, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0048] See also Figures 1 to 5 This embodiment provides a mudflat razor clam harvesting and cleaning device. This device can be used to harvest and clean razor clams on shallow mudflats. The device can autonomously navigate the shallow mudflats, harvesting razor clams and performing a preliminary rinse to remove sediment from the clams. Shallow mudflats refer to mudflats with water levels below a certain height, for example, below 1.2 meters or below 1.5 meters.

[0049] like Figure 1 As shown, in this embodiment, the mudflat razor clam harvesting and cleaning device comprises two slides 2, a clam collecting device, and a propulsion and cleaning device. The two slides 2 are arranged parallel to each other on either side of the bottom of the mudflat razor clam harvesting and cleaning device. When the slides 2 are gliding on the mudflat, they increase the contact area with the mudflat, preventing the mudflat razor clam harvesting and cleaning device from sinking into the mudflat. The two slides 2 can be mounted on either side of the bottom of the mudflat razor clam harvesting and cleaning device by brackets 21. The ends of the slides 2 are curved upward to prevent the ends of the slides 2 from digging into the mudflat during forward or backward movement.

[0050] like Figure 2 As shown, the device for collecting razor clams includes: razor clam forks 41, a hollow conveyor belt 4 and a razor clam basket 7; the razor clam forks 41 are arranged at the front end of the hollow conveyor belt 4, and are used to be inserted obliquely downward into the mudflat to collect razor clams. The hollow conveyor belt 4 is tilted with the front low and the tail high, and a washing area 40 is provided at the front end. The washing area 40 is evenly provided with a plurality of hollow grooves. The razor clam basket 7 is provided at the tail end of the hollow conveyor belt 4, and the razor clams are conveyed to the razor clam basket 7 by the hollow conveyor belt 4. Among them, the razor clam forks 41 are provided with a plurality of fork teeth along the width direction, and the distance between two adjacent fork teeth is less than the thickness of the razor clam (for example, 1 cm). Therefore, when the razor clam forks 41 are inserted into the mudflat and move forward, the razor clams in the mudflat can be dug out, and the mud and sand can pass through the gaps between the fork teeth. The collected razor clams enter the hollow conveyor belt 4. As shown Figure 5 As shown, the surface of the hollow conveyor belt 4 is provided with hollow holes 44, and a rinsing area 40 is provided at the front end of the hollow conveyor belt 4. The hollow conveyor belt 4 can be a metal conveyor belt with hollow holes or a rubber conveyor belt with hollow holes. The hollow holes 44 can reduce the forward resistance of the mudflat razor clam harvesting and cleaning equipment, and can also allow seawater to pass through to clean the razor clams. The rinsing area 40 at the front end of the hollow conveyor belt 4 can be fixed to the razor clam fork tines 41 (i.e., the rinsing area 40 does not move), while the hollow conveyor belt 4 at the rear end of the rinsing area 40 can be driven by a guide wheel to transport the razor clams to the clam basket 7.

[0051] like Figure 3 and Figure 4As shown, the propulsion and clam cleaning device includes: two propulsion propellers 1 and a fluid pipeline 5. The fluid pipeline 5 is arranged at the bottom of the mudflat clam collection and cleaning device and is located between the two slides 2. The fluid pipeline 5 is formed by splicing a top plate 51, a bottom plate and two side plates 50. The front end of the fluid pipeline 5 extends to the front end of the hollow conveyor belt 4 and is abutted and sealed against the back of the washing area 40. The two propulsion propellers 1 are arranged side by side in the horizontal direction at the tail end of the fluid pipeline 5 to accelerate seawater to enter the fluid pipeline 5 through the washing area 40 and push it backward to propel the mudflat clam collection and cleaning device and wash the mud and sand attached to the clams in the washing area 40. A protective cover 11 is provided at the rear end of the propulsion propeller 1 to prevent objects from entering the propulsion propeller 1. The propulsion propeller 1 can be driven to rotate by a motor. In order to prevent seawater from entering the motor, the motor needs to undergo necessary waterproofing treatment. In some embodiments, the motor can be arranged on the upper part of the mudflat clam collecting and cleaning device so that it is located above the sea water, and the motor is connected to the propulsion propeller 1 through a transmission shaft.

[0052] In this embodiment, the propulsion and clam cleaning device simultaneously propels the mudflat clam harvesting and cleaning device (i.e., self-propelled) and rinses the clams. The propulsion propeller 1 is located at the rear end of the fluid conduit 5, and the front end of the fluid conduit 5 is sealedly connected to the back of the rinsing area 40. Therefore, when the propulsion propeller 1 is in operation, it pushes the seawater in the fluid conduit 5 backward, thereby providing the mudflat clam harvesting and cleaning device with forward propulsion. As the seawater in the fluid conduit 5 is pushed backward, a large amount of seawater enters the fluid conduit 5 through the rinsing area 40. This accelerated flow of seawater through the rinsing area 40 rinses the freshly harvested clams, thereby removing any sediment adhering to their surfaces. Therefore, in this embodiment, through the ingenious structural and connection relationship between the fluid conduit 5, the propulsion propeller 1, and the rinsing area 40, the propulsion and rinsing functions are simultaneously achieved.

[0053] like Figure 1 As shown, the clam basket 7 is a hollow basket, and a spray pipe 9 is provided on the top of the clam basket 7. The spray pipe is connected to a water pump, and the water pump sucks seawater to rinse the clams in the clam basket 7. Therefore, the clams collected in the clam basket 7 can be rinsed twice through the spray pipe 9.

[0054] In this embodiment, the mudflat razor clam harvesting and cleaning device further includes a lithium battery and a controller 6. The lithium battery is located in the upper middle portion of the device and is used to power the device. The controller 6 is located at the top of a mounting rod at the top of the device, and a safety guardrail 8 is provided at the rear of the controller 6. The controller 6 is provided with various function buttons for driving and collecting razor clams (e.g., forward button, left turn button, right turn button, angle adjustment button, etc.). In one embodiment, the edge of the razor clam basket 7 is provided with a snap, which enables a detachable connection to the mudflat razor clam harvesting and cleaning device. Therefore, when the razor clam basket 7 is full, it can be quickly replaced with an empty basket.

[0055] like Figure 1 and Figure 4 As shown, the two side panels 50 of the fluid conduit 5 are positioned opposite each other along the width of the mudflat clam harvesting and cleaning device. The side panels 50 are rectangular trapezoidal panels, and the top panel 51 is spliced with the top and hypotenuse of the rectangular trapezoidal panels, making the front opening 52 of the fluid conduit 5 smaller than the rear opening. Therefore, in this embodiment, the seawater flow rate in the fluid conduit 5 is greater than the seawater flow rate at the rear end, thereby enhancing the flushing effect on the clams in the flushing area 40.

[0056] like Figure 4 As shown, the front portions of the two side panels 50 are respectively provided with an inlet and a corresponding second valve 53, and the front end opening 52 of the fluid conduit 5 is provided with a corresponding first valve 54; when the mudflat razor clam harvesting and cleaning device is operating in a non-razor clam collecting straight-moving condition, the first valve 54 and the second valve 53 are both fully opened; when the mudflat razor clam harvesting and cleaning device is operating in a razor clam collecting straight-moving condition, the first valve 54 is opened and the second valve 53 is closed; when the mudflat razor clam harvesting and cleaning device is operating in a razor clam collecting turning condition, the first valve 54 is opened, the second valve 53 on the same side of the turning direction is opened, the second valve 53 on the opposite side of the turning direction is closed, and the rotational speed of the propulsion propeller 1 on the opposite side of the turning direction is greater than the rotational speed of the other propulsion propeller 1.

[0057] The first valve 54 and the second valve 53 are each provided with a drive device (the drive device can be a linear reciprocating device such as a cylinder or a linear motor), which can be used to drive the first valve 54 and the second valve 53 to open or close. In this embodiment, the provision of the first valve 54 and the second valve 53 can improve the turning flexibility of the mudflat clam harvesting and cleaning device, thereby reducing the turning radius and, when operating in a non-clam harvesting mode, reducing the resistance of seawater during operation. Because the front of the side panel 50 is provided with an inlet and a corresponding second valve 53, when the mudflat clam harvesting and cleaning device is operating in a non-clam harvesting mode (in which case the clam harvesting fork 41 is not inserted into the mudflat and the mudflat clam harvesting and cleaning device is moving straight without turning), the first valve 54 and the second valve 53 are both fully open, allowing seawater to enter from the front end and both sides of the fluid conduit 5, thereby reducing the resistance to seawater entering. When the mudflat clam harvesting and cleaning device is operating in a straight-line mode, the first valve 54 is open and the second valve 53 is closed. At this time, all seawater entering the fluid pipeline 5 must pass through the flushing area 40 to ensure flushing efficiency. When turning is required, the second valve 53 on the same side as the turning direction is opened, and the second valve 53 on the opposite side of the turning direction is closed. The rotation speed of the propulsion propeller 1 on the opposite side of the turning direction is greater than the rotation speed of the other propulsion propeller 1, thereby reducing the turning radius. For example, when the mudflat clam harvesting and cleaning device turns right, the second valve 53 on the right side is opened, and the second valve 53 on the left side is closed. The rotation speed of the propulsion propeller 1 on the right side is less than the rotation speed of the propulsion propeller 1 on the left side (the propulsion propeller 1 on the right side can even stop working). At this time, seawater is sucked in from the second valve 53 on the right side, so that the front part of the mudflat clam harvesting and cleaning device has a rightward thrust; and the rotation speed of the propulsion propeller 1 on the right side is lower than the rotation speed of the propulsion propeller 1 on the left side, so that the tail part of the mudflat clam harvesting and cleaning device receives a leftward component (the other component is a forward thrust). Under the action of these two forces, the mudflat clam harvesting and cleaning device turns right with a smaller turning radius.

[0058] Because the turning radius of the mudflat collecting and cleaning device is large, it is difficult to accurately cover the entire mudflat when collecting clams, and it is easy to leave many uncollected debris areas when turning. Figure 1 、 Figure 2 and Figure 3As shown, in one embodiment, in order to further reduce the turning radius of the mudflat clam harvesting and cleaning device, a turning assist assembly 3 is further provided. The turning assist assembly 3 is arranged on the outside of the bracket 21, that is, a turning assist assembly 3 is provided on both sides of the mudflat clam harvesting and cleaning device in the width direction. The turning assist assembly 3 includes: a lifting rod 31 and a resistance-increasing plate 32. The top of the resistance-increasing plate 32 is fixedly connected to the lifting rod 31, and the bottom of the resistance-increasing plate 32 is provided with forks. The turning assist assembly 3 is used to drive the resistance-increasing plate 32 downward and into the mudflat by the lifting rod 31 on the inside of the turn when the turning radius is less than a preset turning radius, thereby increasing the sliding resistance of the mudflat clam harvesting and cleaning device on the inside of the turn.

[0059] The resistance-enhancing plate 32 is used to increase the sliding resistance on the corresponding side. The resistance-enhancing plate 32 is vertically positioned, and its width is aligned with the width of the mudflat clam harvesting and cleaning device. That is, its width is perpendicular to the sliding direction, thereby increasing the force-bearing surface area between the mudflat and the clam harvesting and cleaning device. The width and height of the resistance-enhancing plate 32 can be adjusted according to the size of the mudflat clam harvesting and cleaning device. For example, in one embodiment, the resistance-enhancing plate 32 is made of steel plate with a width of 25 cm and a height of 50 cm. Wave-shaped fork tines are provided at the bottom of the resistance-enhancing plate 32 to facilitate insertion into the mudflat. The lifting rod 31 can be driven by a linear reciprocating mechanism, such as a cylinder or linear motor. The housing of the linear reciprocating mechanism is connected to the bracket via a connecting rod 33. When the lifting rod 31 is driven downward, the resistance-enhancing plate 32 is inserted into the mudflat. The lowering distance of the lifting rod 31 is adjustable, thereby adjusting the insertion depth of the resistance-enhancing plate 32 into the mudflat. The resistance exerted by the resistance-enhancing plate 32 varies accordingly.

[0060] like Figure 4 As shown, in one embodiment, the inclination angle of the hollow conveyor belt 4 is adjustable to adjust the depth of insertion of the razor clam fork tines 41 into the mudflat. As the inclination angle of the hollow conveyor belt 4 is increased, the distance that the razor clam fork tines 41 extend downward beyond the slide 2 also increases, thereby correspondingly increasing the depth of insertion of the razor clam fork tines 41 into the mudflat. A hinged rod 1 43 is provided on the back side of the middle and rear portion of the hollow conveyor belt 4. A connecting piece is provided at the top of the fluid conduit 5. An arcuate slot 431 is provided on the connecting piece. The hinged rod 1 43 is connected to the arcuate slot 431, allowing the inclination angle of the hollow conveyor belt 4 to be adjusted to adjust the depth of insertion of the razor clam fork tines 41 into the mudflat.

[0061] Since the front end of the fluid conduit 5 is sealed and connected to the back of the flushing area 40 in this embodiment, in order to adapt to the tilt angle adjustment of the hollow conveyor belt 4, the fluid conduit 5 is provided with a segmented structure along the length direction, and the front section is swingable in the vertical direction. Figure 4As shown, the fluid conduit 5 is formed, from back to front, by a fixed section 501, a flexible connecting section 502, and a swinging front section 503. The flexible connecting section 502 is located in front of the connecting piece. The front end of the swinging front section 503 is fixedly connected to the washing area 40 and swings vertically in response to the tilt angle of the hollow conveyor belt 4. The flexible connecting section 502 can be made of a flexible, waterproof material such as canvas or rubber. A hinge rod 42 is located at the top of the rear end of the swinging front section 503. A slot corresponding to the hinge rod 42 is provided on the bracket 21. The rear end of the swinging front section 503 is hinged to the bracket 21 via the hinge rod 42. The front end of the swinging front section 503 is fixedly and sealed to the back of the washing area 40. Therefore, when the tilt angle of the hollow conveyor belt 4 is adjusted, the swinging front section 503 rotates about the hinge rod 42, swinging in response to the hollow conveyor belt 4.

[0062] In one embodiment, to facilitate the lifting of razor clams into the clam basket 7, the hollow conveyor belt 4 is provided with a plurality of ridges 45 spaced apart along its length. The ridges 45 prevent the razor clams from sliding down the inclined hollow conveyor belt 4. Furthermore, low guard plates are provided on both sides of the hollow conveyor belt 4 along its width to prevent the razor clams from falling off the sides of the hollow conveyor belt 4.

[0063] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concepts of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A mudflat razor clam collection and cleaning device, characterized in that: Used for collecting and cleaning clams in shallow water, including: Two slides are arranged parallel to each other on both sides of the bottom of the mudflat clam collecting and cleaning device, and are used for sliding on the mudflat; The razor clam collection device includes: razor clam digging forks, a hollow conveyor belt, and a razor clam basket; the razor clam digging forks are arranged at the front end of the hollow conveyor belt, and are used to be inserted obliquely downward into the mudflat to collect razor clams; the hollow conveyor belt is arranged obliquely with the front low and the tail high, and a washing area is provided at the front end, and the washing area is evenly provided with multiple hollow grooves; the razor clam basket is arranged at the tail end of the hollow conveyor belt, and the razor clams are conveyed to the razor clam basket by the hollow conveyor belt; A propulsion and clam washing device, comprising: two propulsion propellers and a fluid conduit, the fluid conduit being disposed at the bottom of the mudflat clam collecting and washing device and located between the two slides, the fluid conduit being formed by splicing a top plate, a bottom plate, and two side plates, the front end of the fluid conduit extending to the front end of the hollow conveyor belt and being sealed to the back of the washing area; The two propulsion propellers are arranged side by side in the horizontal direction at the tail end of the fluid pipeline, and are used to accelerate seawater to enter the fluid pipeline through the flushing area and push it backward, so as to propel the mudflat clam harvesting and cleaning device and flush the mud and sand attached to the clams in the flushing area; The two side plates of the fluid conduit are arranged opposite to each other along the width direction of the mudflat clam collecting and cleaning device, the side plates are right-angled trapezoidal plates, and the top plate is spliced with the top edge and the oblique edge of the right-angled trapezoidal plate, so that the front end opening of the fluid conduit is smaller than the rear end opening; The front parts of the two side panels are respectively provided with an inlet and a corresponding second valve, and the front end opening of the fluid pipeline is provided with a corresponding first valve; when the mudflat clam picking and cleaning device is working in a non-clam collecting straight-moving condition, the first valve and the second valve are both fully opened; when the mudflat clam picking and cleaning device is working in a clam collecting straight-moving condition, the first valve is opened and the second valve is closed; when the mudflat clam picking and cleaning device is working in a clam collecting turning condition, the first valve is opened, the second valve on the same side of the turning direction is opened, and the second valve on the opposite side of the turning direction is closed, and the rotational speed of the propulsion propeller on the opposite side of the turning direction is greater than the rotational speed of the other propulsion propeller.

2. The mudflat razor clam collecting and cleaning device according to claim 1, characterized in that: A hinged rod is provided on the back side of the middle and rear part of the hollow conveyor belt, a connecting piece is provided on the top of the fluid pipeline, an arc-shaped slide groove is provided on the connecting piece, and the hinged rod is connected to the arc-shaped slide groove, so that the inclination angle of the hollow conveyor belt can be adjusted to adjust the depth of the razor clam digging fork teeth inserted into the mudflat; The fluid pipeline is extended in a direction from back to front by a fixed section, a flexible connecting section and a swinging front section, and the flexible connecting section is located in front of the connecting piece; the front end of the swinging front section is fixedly connected to the flushing area, and swings in the vertical direction correspondingly with the change of the inclination angle of the hollow conveyor belt.

3. The mudflat razor clam collecting and cleaning device according to claim 1, characterized in that: The skateboard is arranged at the bottom of the bracket, and turning assist components are respectively provided on the outer sides of the two brackets. The turning assist components include: a lifting rod and a resistance-increasing plate. The top of the resistance-increasing plate is fixedly connected to the lifting rod, and the bottom of the resistance-increasing plate is provided with forks. The turning assist component is used for driving the resistance-increasing plate to move downward and insert into the mudflat by the lifting rod on the inner side of the turn when the turning radius is less than a preset turning radius, so as to increase the sliding resistance of the mudflat clam harvesting and cleaning device on the inner side of the turn.

4. The mudflat razor clam collecting and cleaning device according to claim 1, characterized in that: The clam basket is a hollow basket. A spray pipe is provided on the top of the clam basket. The spray pipe is connected to a water pump. The water pump draws seawater to wash the clams in the clam basket.

5. The mudflat razor clam collecting and cleaning device according to claim 1, characterized in that: It also includes a lithium battery, which is arranged in the upper middle part of the mudflat clam collecting and cleaning device and is used to power the mudflat clam collecting and cleaning device.

6. The mudflat razor clam collecting and cleaning device according to claim 1, characterized in that: Both ends of the slide plate are bent upward.

7. The mudflat razor clam collecting and cleaning device according to claim 1, characterized in that: The device further comprises a controller, which is arranged on the top of the mounting rod on the top of the mudflat clam collecting and cleaning device, and a safety guardrail is arranged at the rear of the controller.

8. The mudflat razor clam collecting and cleaning device according to claim 1, characterized in that: The hollow conveyor belt is provided with a plurality of convex strips at intervals along the length direction, and short guard plates are provided on both sides of the hollow conveyor belt along the width direction.

9. The mudflat razor clam collecting and cleaning device according to claim 1, characterized in that: The edge of the clam basket is provided with a buckle, and the buckle is used to realize detachable connection with the mudflat clam collecting and cleaning device.

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